Kevin, 48, said: "I go to very noisy restaurants when learning lines. I also go to very noisy train stations, where plates are dropping, babies are crying, phones are ringing - because somehow it forces your brain to actually focus."

Kevin - who is set to reprise his role as Lex Luthor in "Superman: The Man of Steel" - also revealed he hates when ideas on how to play characters strike him in the middle of the night.

He added: "Sometimes this happens and I'm sort of half asleep, and about three hours later when I wake up I look at it, and go, 'What the hell is that?' My handwriting is terrible!"